Developers leak new features included in Windows Phone 8.1 SDK

Windows Phone 8.1, codenamed 'Blue', is a forthcoming major update for Microsoft's mobile platform. While we're anticipating an announcement at the companys*Build 2014 conference*in April, with new hardware arriving in June, already Microsoft has released the SDK to developers and we're seeing some leaks appear on Reddit, pointing at a handful of new features in the 8.1 update.*